Third Upgrade Mod v2.16.2 with increased spawn ratio of Ice and Fire Castle

With Third Upgrade Mod every town can have a new building that is used as a general ‘upgrade guild’. Thanks to this the player will be able to upgrade creatures in the town to their new forms. Mod also include +90 new artifacts, new creature banks, new dwellings and many more.

Third Upgrade Mod*
works with Heroes 3 ERA Launcher
Download Heroes 3 Complete from GOG.COM

ATTENTION: Third Upgrades Mod requires “Visual C++ Redistributable” download it in official Microsoft page.

Third Upgrade Mod v2.16.2 Changelog:

  • Updated Amethyst plugin.
  • Updated Amethyst Guide (Thanks to Dalion).
  • Fixed description from Axe of Might and Scepter of Magic (+20) attributes.
  • Increased spawn ratio of Ice and Fire Castle.
  • Regulated chance to cast Hypnotize from Illithid-Alhoon.
  • Removed .mp3 from TUM and therefore also removed UMT scripts.


  1. jks

    DO i need to manually upgrade this mod or it is auto updated through the update option via era launcher?

  2. Liso1 (Post author)

    You have to update it manually, it is not part of the basic installation of ERA 3 Launcher.


Leave a Comment

Your email address will not be published. Required fields are marked *